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I am Lyosha [343]
3 years ago
14

What is the unit form of (2 tens 1 one) x 10

Mathematics
1 answer:
Masja [62]3 years ago
5 0
WILLY, it is Two tens and one one multiplied by 10 is:

(20 + 1) * 10 = 21 * 10 = <span>210</span>
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Two angles of a triangle are 30°and 80°. Find the third angle.
stiv31 [10]

Answer:

The third angle of the triangle is 70°.

Step-by-step explanation:

The two angles of a triangle (say Δ ABC) are given to be 30° and 80°.

We have to find the third angle.

Let us assume that ∠ A = 30° and ∠ B = 80°, then we have to find ∠ C.

Now, we know that, ∠ A + ∠ B + ∠ C = 180° {Property of a triangle}

⇒ 30° + 80° + ∠ C = 180°

⇒ ∠ C = 180° - 30° - 80° = 70°

Therefore, the third angle of the triangle is 70°. (Answer)

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erastova [34]
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Here're the answers:
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Hope this helps!
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