Question

В триугольнике 1 угол 20 градусо 2 угол 90 градусов как найти 3. угол угол АВ 5 метров длина ВС ?

Answer 1

Надо самим думать , а то потом кто поможет ?!))

Answer 2

Finding the Third Angle in a Triangle

To find the third angle in a triangle when two angles are known, you can use the fact that the sum of all angles in a triangle is always 180 degrees.

Given: - Angle A = 20 degrees - Angle B = 90 degrees

Calculation

To find angle C, we can use the formula: Angle C = 180 - (Angle A + Angle B)

Substitute the given values: Angle C = 180 - (20 + 90) Angle C = 180 - 110 Angle C = 70 degrees

So, the third angle in the triangle is 70 degrees.

Finding the Length of Side BC

To find the length of side BC, more information about the triangle is needed. The given information about the angles does not provide enough detail to calculate the length of side BC.

If you have additional information about the triangle, such as the length of another side or the ability to calculate the length using trigonometric functions, please provide that information for further assistance.