2 years ago

In triangle ABC, AC=13, BC=84, and AB=85. Find the measure of angle C

Mathematics

1 answer:

r-ruslan [8.4K]2 years ago

3 0

Answer:

90°

Step-by-step explanation:

Angle C = arccos((84²+13²-85²)/(2×84×13))

= arccos(0/2184)

= arccos(0)

= 90°

Answered by GAUTHMATH

You might be interested in

I need help with math ...x+180+1.5x+3x=455

kirill115 [55]

5.5x+180=455
5.5x=275
The answer is X=50

8 0

3 years ago

VikaD [51]

Answer:

a. Point S

b. Line segment PT and Line segment ST

c. PSQRU

d. Lines PR and SQ

e. Plane C and Plane QRS

Step-by-step explanation:

7 0

2 years ago

2) You purchase a car using a $23,000 loan with a 4% simple interest rate. Suppose you pay the loan off after 5

Sedbober [7]

60 is the answer to this question

7 0

3 years ago

Read 2 more answers

What is the measurement of ABC? D. 1180 A. 28° ОО E. 208° B. 62° O c. 90°

Len [333]

Answer:

118°

Step-by-step explanation:

Line b is a perpendicular bisector so 90°+28°=118°

7 0

3 years ago

Find the smallest solution of the equation 2/3x^2=24

Dimas [21]

$\dfrac{2}{3} {x}^{2} \: \: = \: \: 24 \\ \\ \: {x}^{2} \: \: = 24 \: \times \: \dfrac{3}{2} \\ \\ \: {x}^{2} \: \: = \: \: 36 \\ \\ x = 6 \: \: or \: \: x = - 6 \: \: \: \: \\$

Hence , smallest solution is -6

Hope it helps you ! :)

5 0

3 years ago