A right triangle has an area of 24 ft^2 the dimensions of the triangle are increased by a scale factor of 6

A.48ft^2
B.72ft^2
C.144ft^2
D.864ft^2

12 answers

Plz halp
original:
base --- b, height --- h
area = (1/2)bh = 24
bh = 48

new triangle:
base ---6b, height ----6h
new area = (1/2)(6b)(6h) = 18 bh = 864
so the area is increased by a factor of 6^2
thanks guys
so what was the answer?
864
Thanks Mate
Its 144ft^2
Ah yes, It seems Pearson never changes. This question has stayed the same since 2014! What a treat.
The formula is ALT 0 1 7 8 = ²
is it 144
so is it 144 or 864