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Solnce55 [7]
2 years ago
14

What is the surface area of the square pyramid?

Mathematics
1 answer:
matrenka [14]2 years ago
3 0

Answer:

sa (surface area) = a^{2} + 2a \sqrt{x} \frac{a^2}{4} + h^2\\

Step-by-step explanation:

I hope this helps! Have a fantastic day/night!

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SIZIF [17.4K]

Angle <QAB is =15° because the opposite angles of an isosceles triangle are equal.

The length of the straight line AB = 80cm

<h3>Calculation of angle of a triangle</h3>

The angle at a point = 360°

Angle AQB= 360 - 210° = 150

But the angle that makes up a triangle= 180°

180-150= 30°

But <QAB = <QBA because triangle AQB is an isosceles triangle.

30/2 = 15°

To calculate the length of the straight line the following is carried out using the sine laws.

a/ sina, = b sinb

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Learn more about isosceles triangle here:

brainly.com/question/25812711

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