Question

What is the answer ?

Answer 1

The angle B will be equal to ∠B=53.13 degrees.

What is the triangle?

Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

It is given that:-

Three sides of the triangle are:- a= 3, b=4  and c =5

The angle B will be calculated by the following formula;-

$\angle B=Cos^{-1}\dfrac{a^2+c^2-b^2}{2ac}\\\\\\\angle B=Cos^{-1}\dfrac{3^2+5^2-4^2}{2\times 3\times 5}\\\\\\\angle B=Cos^{-1}(0.6)$

∠B=53.13 degrees

Hence the angle B will be equal to ∠B=53.13 degrees.

To know more about triangles follow

brainly.com/question/17335144

#SPJ1