Well, if one face has an area of 81 square centimeters, then that means that each side of the square is 9 centimeters. The formula to find volume is
, so 9^3 = 729.
In short, your answer would just be 729 centimeters
Hope this helped!!!
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Answer:
<h3>Q5</h3>
As the opposite angles of a cyclic quadrilateral, A is supplementary with C and B is supplementary with D.
In the trapezoid, angle A is supplementary with D and angle B is supplementary with C.
It means ∠A ≅ ∠B and ∠D ≅ ∠C
Now, ∠ABD ≅ ∠ACD as both angles intercept same arc AD.
<u>So we have:</u>
- m∠B = m∠ABD + m∠DBC = 35° + 72° = 107°
- and
- m∠C = 180° - m∠B = 180° - 107° = 73°
So angles B and A are 107° and angles D and C are 73°
<h3>Q6</h3>
PXR is exterior angle of triangle XSR.
Angles Q and S are supplementary as opposite angles of a cyclic quadrilateral QPSR.
- m∠PXR = m∠XRS + m∠XSR = 20° + (180° - 80°) = 120°
Kinetic Energy = (1/2)mv².
where m = mass in kg= 2.5 * 10⁵kg = 250000 kg, v = velocity in m/s = 3*10² m/s = 300 m/s
Kinetic Energy = (1/2)*250000*300² = 0.5 * 250000 * 300 * 300
= 1.125 × 10¹⁰ Joules.
2) Relationship between aⁿ and a⁻ⁿ
a⁻ⁿ = 1 / aⁿ
or
aⁿ = 1 / a⁻ⁿ
