Step-by-step explanation: Given that Danny has a triangular pyramid where all the four triangles are congruent. The height and base of one triangle are 6 inches and 5 inches respectively. We are to find the surface area of the pyramid.

The area of one triangle is given by

$A=\dfrac{1}{2}\times\textup{base}\times\textup{height}=\dfrac{1}{2}\times 5\times 6=15~\textup{sq. inches}.$

Since the pyramid consists of four congruent triangles, so the surface area of the pyramid will be

$S=4\times A=4\times 15=60~\textup{sq. inches}.$

Thus, the answer is 60 sq. inches.

8 0

3 years ago

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James folds a square piece of in half to create a rectangle with a perimeter of 12 inches. What is the original square?

PilotLPTM [1.2K]

24 inches. You could simply multiply by 2. Do you want another solution?

3 0

3 years ago

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Hello! can someone tell me the answer for 4/5 x (- 5/7) please? ty <3

lesya692 [45]

Answer:

0.8*x*(‑5)/7

Step-by-step explanation:on the qraph

3 0

3 years ago

Help me it's for today​

Help me it's for today