In the diagram above, the area of triangle ABC is 35cm\(^2\). Find the value of y
Attached Figure / Diagram
A
5cm
B
10cm
C
17.5cm
D
28cm
E
70cm
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Area of triangle ABC = 35cm\(^2\).
Area of triangle ABC = \(\frac{1}{2}\) x B x H
= 0.5 x y x 7 = 35
= 3.5y = 35
y = \(\frac{35}{3.5}\) = 10 cm.
Source: Myschool Past Questions Archive (Record #26344)