The table shown in the diagram is the triangular portion of the wall between the edges of the sloping roof. Triangle ABC is an isosceles triangle. Side CB is 12 feet 4 inches long. Sides AB and AC are each 0.75 of this length. What is the perimeter of triangle ABC?
A) 21 ft 7 in.
B) 31 ft 4 in.
C) 18 ft 6 in.
D) 30 ft 10 in.

Question

The table shown in the diagram is the triangular portion of the wall between the edges of the sloping roof. Triangle ABC is an isosceles triangle. Side CB is 12 feet 4 inches long. Sides AB and AC are each 0.75 of this length. What is the perimeter of triangle ABC?
A) 21 ft 7 in.
B) 31 ft 4 in.
C) 18 ft 6 in.
D) 30 ft 10 in.

anonymous · Answer

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anonymous · Answer

Medal to the first to answer :)

anonymous · Answer

Ans is D. 30ft 10in

anonymous · Answer

See, Side CB is 148in. So, Side AB=AC=0.75*148=111in.
Perimeter will be AB+BC+AC=370in=30ft 10in.

anonymous · Answer

Thank you!!! :) I have 2 more questions if you don't mind. PLEEAASSEEE!!!

anonymous · Answer

oh ok thanks for explaining it! I get it now :) So how about those 2 other questions? :)

anonymous · Answer

@sumitprataps

anonymous · Answer

ya, ask your other questions.