The measure of length EF is the triangle EFG has an area of 70 m² is 7.38m
How to calculate the area of a triangle?
A triangle is a 2-dimensional shape with 3 sides and angles. The formula for calculating the area of a triangle is expressed as:
A = (EF)(FG) sin theta
If the ratio of EF to FG is 1:2, then FG = 2EF
A = (EF)(2EF) sin theta
70 = 2EF²sin40
70 = 1.2856EF²
EF² = 54.474
EF = 7.38m
Hence the measure of length EF is the triangle EFG has an area of 70 m² is 7.38m
Learn more on area of triangle here: https://brainly.com/question/17335144
