Question

answer The maths Question​

Answer 1

Answer:

1. x = 50

2. 22.9

3. A = 6.9282

4. x = 110°

Step-by-step explanation:

1. ∠BAC = 80°

= AB = AC [ ΔABC is an isosceles triangle]

= Let AB and AC = x

= x + x + 80 = 180

= 2x = 180 - 80

= 2x = 100

= x =50

= ∴ ∠ABC = 50°

2. Highest value - Lowest value

= 25.7 - 2.8

= 22.9

3. Area = √3 / 4 .$a^{2}$

= A = √3 x 4

= A = 1.732 x 4 [√3 = 1.732]

= A = 6.9282

4. 30 + x + 40 = 180

= x + 70 = 180

= x = 180 - 70

= x = 110°

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