Question

. Find the value of 'y' in the given triangle.
700
Y​

Answer 1

Answer:

• Given - a triangle

- one angle is 70°

• To find - value of y

• Solution -

We know that sum of all angles of a triangle is 180°

y + y + 70 = 180

2y + 70 = 180

2y = 180 - 70

2y = 110

y = 110/2

y= 55°

Value of y = 55°

ADDITIONAL INFORMATION

--------------------------------------------

• A triangle is a polygon of 3 sides.

• area of triangle = 1/2 × b× h

• Area of triangle is also find by heron's formula i. e

root s (s-a) (s-b) (s-c)

Where, s = semi perimeter

a , b, c are three sides of triangle

• A parallelogram can be divided into 2 congruent triangle.

# Be brainly