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Q.3) Fill in the blanks:
(1 markt
(1) ABC is an equilateral triangle of side a. Its area will be
(ii) The distance

By Hadley

Q.3) Fill in the blanks:
(1 markt
(1) ABC is an equilateral triangle of side a. Its area will be
(ii) The distance of the point (a, b) from the origin is​

About the author
Hadley

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স, আজ আমাদের পাড়ার অয়নদা তার মােটরবাইকে 2 ঘন্টা ১মিনিটে 100 কিমি. দুরত্ব গিয়েছে। কিন্তু
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The PT instructor wants to arrange the students in such a way that each row has as many students as the number of rows. If there a

2 thoughts on “Q.3) Fill in the blanks:<br />(1 markt<br />(1) ABC is an equilateral triangle of side a. Its area will be<br />(ii) The distance”

  2. Answer 1. √3/2 * (a^2) sq. units

    ii. √a^2 + b^2 units

    Step-by-step explanation:

    1. All the sides are equal. so by Herons formula

    S = (a + a + a )/2 = 3a/2

    area = √s(s-a)(s-b)(s-c) sq. units

    here √3a/2(3a/2-a)(3a/2-a)(3a/2- a)

    =√(3a/2)(a/2)(a/2)(a/2)

    =√3a⁴/16

    = √3/2 * (a²) sq. units

    2. Formula to find distance between two points is √(X2 – X1)²+ (y2 -y1)²

    origin (0,0) and (a,b)

    here X1 =0 y1 = 0

    X2 =a y2 = b

    then we have √(a – 0)² +(b – 0)²

    √a² + b² units.

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