Answer:
Kindly check explanation
Step-by-step explanation:
Given the data:
54 79 100 70 75 56 88
55 78 75 55 72 60 80
55 88 80 85 69 71 60
90 64 77 88 65 102 70
Class____frequency____cumulative frequency
54 - 63_____7_____________7
64 - 73_____7_____________14
74 - 83_____7_____________21
84 - 93_____5_____________26
94 - 103____2_____________28
Answer:
72
Step-by-step explanation:
The area (A) of a rhombus is calculated as
A = × d₁ × d₂ (d₁ and d₂ are the diagonals )
The diagonals bisect each other at right angles
d₁ = 2 × 6 = 12
Use the tangent ration in the upper left right triangle and the exact value
tan60° =
tan60° = =
=
( multiply both sides by 6 )
opp = 6 , then
d₂ = 2 × 6 = 12
Thus
A = × 12 × 12
= 6 × 12
= 72