4. The length of the base of a triangle is 8.2cm. The area of the triangle is 39.77 cm2.
Shen works out that the perpendicular height of the triangle is 7.9cm
a. Without using a calculator, explain how you can tell that Shen is wrong.
b. Work out the perpendicular height of the triangle
39.77 cm2
8.2cm
c. What mistake do you think, Shen made?

(Can you guys help me here is the the picture can you help me pls)

answer: 45

-4

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?