Solve the problems below. answer with completely simplified exact value(s) or expression(s). given: δавс, m∠acb = 90° cd ⊥ ab , m∠acd = 60°,bc = 6 cm find cd, area of δabc pictiure:

Step-by-step explanation:

Triangle ABC is right triangle. Since  m∠ACB = 90°  and m∠ACD = 60°, you get m∠BCD = 90°-60°=30°.

Triangle BCD is rigth triangle, then the leg that is opposite to the angle of 30° is half of the hypotenuse. Thus,

By the Pythagorean theorem,

Then

Hypotenuse AB of the triangle ABC is equal to

The area of the triangle ABC is

sine

step-by-step explanation:

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or