Area of Rhombus
What is the formula to find the area of a rhombus?
The area is given by A=(1/2)d1d2, where d1 and d2 are the lengths of the diagonals.
What is the formula to find the area of a kite?
The area is given by A=(1/2)d1d2, where d1 and d2 are the lengths of the diagonals.
What is the formula to find the area of a circle?
The area is given by A=πr2 where r is the radius.
What is the formula for the area of a sector of a circle?
The area is given by A=(xπr2)/360 where x is the central angle in degrees
What is a point in geometry?
A point is a specific location in space that has no dimensions, represented by a dot
If the diagonals of a rhombus are 6 cm and 8 cm, what is its area?
24 cm2
A kite has diagonals measuring 12 cm and 16 cm. What is its area?
96 cm2
If a circle has a radius of 5 cm, what is its area?
25π cm2
If a circle has a radius of 10 cm and a sector with a central angle of 90°, what is the area of the sector?
25π cm2
What is the distance formula?
d=square root: (x2−x1)2+(y2−y1)2
A rhombus has an area of 50 cm². If one diagonal is 10 cm long, what is the length of the other diagonal?
10 cm
If a kite's area is 48 cm² and one diagonal is 8 cm, what is the length of the other diagonal?
12 cm
A circle has an area of 50 cm². What is the radius?
4
A sector has an area of 15.7 cm² and a radius of 4 cm. What is the central angle?
45
Name the types of angles
The types of angles include acute, right, obtuse, and straight angles
Explain why a rhombus can also be classified as a parallelogram.
A rhombus has all sides equal and opposite angles equal, satisfying the conditions of a parallelogram.
If a kite has one diagonal measuring 10 cm and an area of 100 cm², what is the length of the other diagonal?
20 cm
What is the relationship between the diameter and radius of a circle?
The diameter is twice the radius, d=2r.
Describe how to find the length of an arc in a sector.
(x2πr)/360
What is the Pythagorean theorem and what shape can you use it on?
a2+b2=c2
right triangle
If the area of a rhombus is 64 cm² and one diagonal is 16 cm, what is the length of the other diagonal?
8 cm
How does a kite differ from a rhombus?
A kite has two distinct pairs of adjacent sides that are equal, while a rhombus has all four sides equal.
If the area of a circle is 78.5 cm², what is the diameter?
d=10 cm
If a sector with a radius of 6 cm has an area of 12π cm², what is the central angle?
80
Explain the concept of congruence.
Congruence means that two figures have the same shape and size