Question

Find m.
A) 3.4
B) 5.2
C) 7.5

Answer 1

In triangle EFG,

EG = 4.8 units

Since angle FDE = angle FED,

EF = FD = 3.5 units [sides opposite to equal angles]

FG = DE = 3 units [Given]

s = (a+b+c)/2

= (EG+EF+GF)/2

= (4.8+3.5+3)/2

= 11.3/2

now using Heron's formula,

area of EFG =

Explanation: