ABD is an equilateral triangle. AB is ___ units long
1 answer:
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Answer:
The correct options are :
b. 5
e. 25
Step-by-step explanation:
The question is incomplete. The missing part is :
'' Which of these values will prove Sherry's claim is false :
a. 3
b. 5
c. 7
d. 11
e. 25 ''
One way to prove that Sherry's claim is false is finding one odd number greater than 1 that when we replace it in the denominator of the expression the result isn't equivalent to a repeating decimal.
Let's analyze each option :
- a. 3
3 is an odd number greater than 1 ⇒ If we replace in the expression ⇒
≅ 0.3333 (repeating decimal)
The option a. 3 won't prove that Sherry's claim is false.
- b. 5
5 is an odd number greater than 1 ⇒ If we replace in the expression ⇒
The result isn't a repeating decimal.
The option b. 5 will prove that Sherry's claim is false.
- c. 7
7 is an odd number greater than 1 ⇒ If we replace in the expression ⇒
≅ 0.1428 (repeating decimal)
The option c. 7 won't prove that Sherry's claim is false.
- d. 11
11 is an odd number greater than 1 ⇒ If we replace in the expression ⇒
≅ 0.0909 (repeating decimal)
The option d. 11 won't prove that Sherry's claim is false.
- e. 25
25 is an odd number greater than 1 ⇒ If we replace in the expression ⇒
≅ 0.04
The result isn't a repeating decimal
The option e. 25 will prove that Sherry's claim is false.
Answer:
≈ 78.55 cm
Step-by-step explanation:
Using the ratio of arc (AB) to circumference (C) is equal to the ratio of angle subtended at centre by arc AB to 360°, that is
=
, that is
=
( cross- multiply )
110C = 8640 ( divide both sides by 110 )
C = ≈ 78.55 cm ( to 2 dec. places )
Answer:
48 sq. units
Step-by-step explanation:
The area of a trapezoid is given by half sum of the bases multiplied by the height
where a and b are the two parallel sides of the trapezoid and h is the height or amplitude of the trapezoid
But you are aware that, the median of a trapezoid is equal to half the sum of the bases, thus the first part of the formulae is covered by the median
Hence area, A, of a trapezoid is simplified to product of median and amplitude