the first term of an arithmetic progression is 5 and the last term is 85 . if the sum of all the terms is 750 , what is the 6th term

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: