Answer:
She should have multiplied one half (4)(3.5) by 5 squared.
Step-by-step explanation:
We are given that
Base of triangle=b=4 cm
Height of triangle=h=3.5 cm
Area of triangle=[tex]\frac{1}{2}bh=\frac{1}{2}(4)(3.5) cm^2[/tex]
After enlarged
Scale factor=5
New base of enlarged triangle=b'=4(5) cm
Height of enlarged triangle=h'=3.5(5) cm
Area of enlarged triangle=[tex]\frac{1}{2}4(5)(3.5\times 5)=\frac{1}{2}(4)(3.5)(5^2) cm^2[/tex]
But Beth wrote
Area of enlarged triangle=[tex]\frac{1}{2}(4)(3.5)(5)=35 cm^2[/tex]
She should have multiplied one half (4)(3.5) by 5 squared.
Answer:
D
Step-by-step explanation:
I got it right on my quiz on Edgen 2020
