What is the surface area of the faces of the pyramid?

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

8 0

The area of a triangle is (base*height)/2
Therefore: 12*10=120/2=60. Since there are three triangles then you multiply 60 by three. 60*3=180
Since the triangle in the middle is equilateral the height is 10. (10*10)/2=50
180+50=230
The answer is 230 inches²

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Please help please I really need help

Umnica [9.8K]

Yo sup??

The two triangles are similar by AAA property ie

Angle Angle Angle property

Let us name the two triangles as ABC and DEF

By observing the figure

mB=mE=90 (right angled triangle)

mA=mD (parallel lines property)

mC=mF (parallel lines property)

Therefore by AAA the two triangles are similar .

The diagram is given below.

PS: All the credits for image goes to Picasso-PSN03

5 0

3 years ago

What is the value of x? Enter your answer in the box. Ft Triangle V T K with segment T Y such that Y is on segment V K, between

Yanka [14]

Answer:

x=47 feet

Step-by-step explanation:

Since angle VTY is congruent to angle VTK, segment TY bisects angle VTK. Since Y is on segment VK, between V and K, we can use the Angle Bisector Theorem, which states that:

$\frac{VY}{YK}=\frac{VT}{TK}$