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3 years ago

8. Find the measure of the interior angles. *

Mathematics

1 answer:

tatiyna3 years ago

8 0

180/3=60
Each angle is 60 degrees.

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I DONT UNDERSTAND HELP <br> Find the values of the variables<br><br> (Simplify your answers )

SVETLANKA909090 [29]

Answer:

x=88 (alternative angles)

y=31 each

v=41 (alternative angles)

w=20 (alternative angles)

Step-by-step explanation:

for y:

we add all the angles got therefore,

20+41+88+y+20+41+88+y=360(because total angle in a quadilateral is 360°)

298+2y=360

2y=360-298

2y=62

therefore y=62/2=31° for each y

4 0

3 years ago

Evaluate cos(sin^-1(4/5)

PSYCHO15rus [73]

Step-by-step explanation:

$Let \: \: \theta = \sin^{ - 1} (\frac{4}{5}) \\ \\ \therefore \: \sin\theta = \frac{4}{5} \\ \\ \because \: { \cos}^{2} \theta =1 - { \sin}^{2} \theta \\ \\ \therefore \: { \cos}^{2} \theta = 1 - (\frac{4}{5} )^{2} \\ \\ = 1 - \frac{16}{25} \\ \\ = \frac{25 - 16}{25} \\ \\ = \frac{9}{25} \\ \\ \therefore \:{ \cos}\theta = \pm \: \frac{3}{5} \\ \\ \because \: \theta \: lie \: in \: the \: first \: quadrant \\ \\ \therefore \: { \cos}\theta = \: \frac{3}{5} \\ \\ \implies \theta = { \cos}^{ -1 } \: \frac{3}{5}\\\\\implies \theta = { \cos}^{ -1 } \: \frac{3}{5}= { \sin}^{ -1 } \: \frac{4}{5} \\ \\ \therefore \: \cos( \ {sin}^{ - 1} \frac{4}{5} ) \\ \\ = \cos( \ {cos}^{ - 1} \frac{3}{5} ) \\\\ = \frac{3}{5} \\ \\ \purple{ \boxed{\therefore \: \cos( \ {sin}^{ - 1} \frac{4}{5} ) = \frac{3}{5}}}$

8 0

3 years ago

X-5=17??????????????????

yKpoI14uk [10]

Answer:

x=21

Step-by-step explanation:

add 5 to both sides. it gives u 21

4 0

3 years ago

A surveying team needs to find the distance across a canyon. They decide to locate two point, A and B, on one side of the canyon

balandron [24]

Answer:

B). About 109 meters

6 0

3 years ago

Please help??!?!??? Bplease

amid [387]

Answer:

radical 7<14÷5

bcoz radical 7 is 2.645

and 14÷5 is 2.8

3 0

3 years ago