Answer:
Draw a right triangle and name it ABC- C is your right angle. A is the angle above C and B is the angle on the side of C. AC=12 and CB=5, you have to find AB using the Pythagorean Theorem.
Step-by-step explanation:
Using the Pythagorean Theorem you say:
AB²=AC²+CB²
AB²=12²+5²
AB²=144+25
AB²=169
AB=√169
AB= 13
Answer:
b d is the answer and see in book
Answer:
The missing side is 
The missing angles are
and
Step-by-step explanation:
Given



The implication of this question is to solve for the missing side and the two missing angles
Represent
Angle A with 
Angle B with 
Angle C with 
Calculating B
This will be calculated using cosine formula as thus;

Substitute values for A, C and 




Take Square root of both sides

<em>(Approximated)</em>
Calculating 
This will be calculated using cosine formula as thus;

Substitute values for A, B and C



Collect Like Terms


Divide both sides by -144



<em>(Approximated)</em>
Calculating 
This will be calculated using cosine formula as thus;

Substitute values for A, B and C


Collect Like Terms


Divide both sides by -120



<em>(Approximated)</em>
Answer:
120 cubic cm
Step-by-step explanation:
formula is b*h. the base can be found by l*w/2. the area of the base is 12. 12*10 is 120 cm
Answer: The discounted price of the telescope would be $88.20.