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photoshop1234 [79]
3 years ago
12

Find the value of x and y

Mathematics
1 answer:
PolarNik [594]3 years ago
7 0

Answer:

x=90: y =43

Step-by-step explanation:

Given is a triangle.  In ABC, AB = AC is given.  also angle C = 47 is given.

AD is angle bisector of angle A

Since two sides are equal, ABC is isosceles.  We have angle C = angle B

Hence angle B = 47 degrees.

Angle A = 180-(B+C) = 180-94 = 86

So angle y = 1/2 (86) = 43

Consider triangle BAD.

We have got two angles as 47 and 43.

Hence third angle is 180-(47+43) = 90

So x=90, y = 43


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Hey friend please solve this question
Bas_tet [7]

yes and yes.

you're told ∠A=∠B. this means angle A and B are equal. so the value you get for cos A will be the same as the value you'll get for cos B

also, the value you get for tan A will be the same as the value you'll get for tan B


if that doesn't make sense you could also draw the triangle and solve for A and B.

you're told it's a right angled triangle meaning one of the angles = 90

you're told that C is that angle so if C is a right angle, angle C=90

the sum of all the angles in a triangle = 180

so angle A+ angle B + angle C = 180

angle A+ angle B + 90 = 180

angle A+ angle B = 180 - 90

angle A+ angle B = 90

  • A and B could be any value but you're told angle A = angle B

        angle A+ angle B = 90

        you can divide 90 by 2 because A and B are equal. that will give you 45 for A and 45 for B

or

  • angle A+ angle B = 90

        since angle A = angle B,

1. you can substitute angle A with angle B like this

  angle B+ angle B = 90

  2 angle B = 90

  angle B = 90/2

  angle B=45; ∴ angle A is also 45 ( because angle A= angle B)

2. or you could substitute angle B with angle A

   angle A+ angle A = 90

2 angle A = 90

  angle A = 90/2

  angle A =45; ∴ angle B is also 45 ( because angle A= angle B)


Now you know what A and B are,

sin A = sin 45; sin B = sin 45

sin 45 = sin 45

tan A = tan 45; tan B = tan 45

tan 45 = tan 45

7 0
3 years ago
Can someone help me please? (I’ll give out brainliest to the quickest and correct answer)
katrin [286]

Answer:

what is the question ? but i dont know ans

6 0
2 years ago
If a rectangular area is rotated in a uniform electric field from the position where the maximum electric flux goes through it t
Greeley [361]
With a uniform electric field, flux go along parallel paths, then flux is therefore proportional to the cosine of the angle rotated.
0 degree rotation => cos(0)=1 => 100% of flux.
60 degrees rotation => cos(60) => 0.5  => how many % of flux?
7 0
2 years ago
Solve:<br> -2/3 a - 6 = 12 <br> what is a
Hitman42 [59]

Answer:

a = - 27

Step-by-step explanation:

- \frac{2}{3} a - 6 = 12 ( add 6 to both sides )

- \frac{2}{3} a = 18 ( multiply both sides by 3 to clear the fraction )

- 2a = 54 ( divide both sides by - 2 )

a = - 27

8 0
2 years ago
Write the equation. included. in the same set of related facts. as 6×8=48
Natali5045456 [20]
U can do it this way 48÷8=6
6 0
3 years ago
Read 2 more answers
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