What is the surface area of the pyramid?
2 answers:
Answer:
166 square units
Step-by-step explanation:
Let’s find the area of the shapes that in the net.
First, we can see two of the triangles have a base of 2 and a height of 13. The formula for surface area of a triangle is bh÷2. (13x2)÷2=13. Since there are two triangles, we multiply 13 by 2 and get <u><em>26</em></u>.
Second, we can see two of the triangles have a base of 10 and a height of 12. (10x12)÷2=<u>60.</u> Since there are two triangles, we multiply 60 by 2 and get <u>120</u>.
Third, we can see a rectangle has a base of 10 and a height of 2. The formula for surface area of a rectangle is bh. 10x2=<u>20</u>.
Last, we add up all the areas:
20+120+26=166.
You might be interested in
Angles at right-angle add up to 90 degrees
The measure of acute angle Tryon Street forms with Barton Road is <em>33 degrees</em>
The angle is given as:
---- <em>Angle formed by Tryon Street with Olive Tree Lane. </em>
The measure of the acute angle formed by Tryon Street with Barton Road (B) is calculated using:
---- angle at right-angle
Make B the subject
Substitute 57 for A
Hence, the measure of acute angle is 33 degrees
Read more about acute angles at: