📐 geometry

1. Problem: Given BC = 100° and AC = 40°, find angle \( \angle 1 \). Step 1: Recall the relationship for the angle formed outside a circle by two secants:

1. The user has described a set of 18 triangles arranged in 6 rows and 3 columns. 2. Each triangle has vertices labeled with uppercase letters and side/angle labels in lowercase or

1. The problem states that O is the center of the circle, and we need to find the angle $x$ at the center formed by two radii. 2. We are given an inscribed angle of 115° that subte

1. Formulujeme zadání: Máme rovnoramenný trojúhelník ABC se základnou AB, kde úhel u vrcholu B je $80^\circ$. Bod S je střed základny AB a prochází jím přímka rovnoběžná s AC. Hled

1. **Énoncé du problème :** On considère un rectangle EFGH avec $EH=4$ cm, des points $M \in [FG]$ et $N \in [GH]$ tels que $MF=NG=m>0$ et $NH=2m$. Il faut : - a) Montrer que $t^2-

1. The problem asks to find the height of the triangle with base BD. Height is defined as the perpendicular distance from the opposite vertex to the base.

1. Problem 3 shows a right triangle with base 8 cm and height 3 cm inside it. Calculate the area using the formula for the area of a triangle:

1. We are given a triangle with one angle of 15° and another angle of 45°, and an unknown angle $x$ adjacent to the 15° angle. 2. In a triangle, the sum of interior angles is alway

1. **Surface Area Basics:** Surface area is the total area of all the outer surfaces of a 3D object. 2. **Volume Basics:** Volume is the amount of space occupied by a 3D object.

1. Let's start with the **surface area** and **volume** of basic three-dimensional shapes such as cubes, cuboids, cylinders, cones, and spheres. 2. **Cube:** A cube has all edges e

1. **Stating the problem:** Find the lateral surface area (L.S.A) of a trapezoidal prism. L.S.A = P \times h, where P is the perimeter of the base and h is the height of the prism.

1. State the problem: We are given the circumference $C = 62.9$ inches of a circle and the value of $\pi = 3.14$. We need to find the radius $r$ of the circle and round it to the n

1. The problem states that the area of a circle is 46.3 cm² and asks us to find its radius, using \(\pi = 3.14\). We need to round the answer to 2 significant digits. 2. Recall the

1. The problem asks for the area of a circle with radius $r = 16.0$ cm. 2. The formula for the area of a circle is $$A = \pi r^2$$.

1. The problem asks for the circumference of a circle with radius $5.00$ inches. 2. The formula for the circumference $C$ of a circle with radius $r$ is:

1. **Problem Statement:** We are given two cylinders: - Cylinder A: Diameter = 7 cm, Height = 14 cm

1. Problem statement: We need to decide when to use surface area and when to use volume for a cylindrical tank in different situations. 2. Definitions:

1. **Problem Statement:** Find the length labeled $j$ in the given geometric diagram involving circles, arcs, and triangles with angles 26°, 64°, 32°, 45°, and 77°. 2. **Identify t

1. **Problem statement:** Given multiple circles with various angles, including angles 29°, 58°, 31°, 64°, etc., and geometric shapes like triangles and rectangles inside and betwe

1. Find the distance between points M(2, -3) and N(10, -3). Step 1: Use the distance formula $$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$.

1. The problem asks for drawing the outlines of each view of a 3D prism: Plan View, Front Elevation, and Side Elevation. 2. **Plan View** is the top-down projection of the prism. W