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2 years ago

9a plz help! Ddldkdekekeksksld

Mathematics

1 answer:

velikii [3]2 years ago

6 0

Answer:

30°

Step-by-step explanation:

The area of a triangle given sides a and b and angle C is:

area = (ab × sin C)/2

Here we are given sides a and c, and we are looking for angle B, so we have

area = ac × sin B

12 cm² = [(8 cm)(6 cm)(sin B)]/2

24 = 48sin B

sin B = 0.5

B = 30°

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Step-by-step explanation:

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3 years ago

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2 years ago

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2 years ago

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aniked [119]

m<5=40°

Reason-Its Given

m<2=140

Reason-Given

<5 and <2 are linear pair(looked properly in diagram) Hence they are supplementary.

<5 and 2 are same side interior angles (Clearly shown on diagram .

We can call them co responding interior angles and their sum will be 180 if lines are parallel

a||b

Let's verify

Let the angle below <1 be <3

Now

<2+<3=180

<5+<4=180

<5=<2

$\\ \sf\longmapsto$

Hence verified

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2 years ago