Triangle area = 1/2 times base times height
Triangle area = 1/2 x 5 1/2 x 3/14 (does not look like correct number)
Triangle area = 0.5 x 5.5 x 0.21
Triangle area = 0.5775
Did you mean:
Triangle area = 1/2 x 5 1/2 x 3 1/4 ???
Then
Triangle are = 0.5 x 5.5 x 3.25
Triangle area = 8.9375
You might need to keep it in fractions.
Answer:
1)
2)
3)
Step-by-step explanation:
Using negative exponent rule:
1) one -tenth of kilometer =.1 =
Using negative exponent rule:
2) 
Using negative exponent rule:
3)
P(the students she selects are both boys)=7/12×5/10=35/120=7/24
Answer:
- Part 2 - ∠EGF = 105°
- Part 3 - ∠D = 65
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Step-by-step explanation for Part-2:
<u>We know that:</u>
- ∠EFG = 32°
- ∠AEG = 137°
- ∠EFG + ∠FGE + ∠GEF = 180°
<u>Work:</u>
- ∠EFG + ∠FGE + ∠GEF = 180°
- 32 + ∠FGE + (180 - 137) = 180°
- => 32 + ∠FGE + 43 = 180°
- => 75 + ∠FGE = 180°
- => ∠FGE = 180 - 75
- => ∠FGE = ∠EGF = 105°
Hence, the measure of ∠EGF is 105°.
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Step-by-step explanation for Part-3:
<u>We know that:</u>
- CD = CA
- This triangle is an isosceles triangle.
- ∠D = ∠A
<u>Work:</u>
- 50 + ∠D + ∠A = 180
- => ∠D + ∠D = 130
- => 2∠D = 130
- => ∠D = 130/2
- => ∠D = 65
Hence, the measure of ∠D is 65°
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