Answer:
(1) Area of second triangle= 50 cm^2.
(2) Area of ΔABC=98 cm^2.
and Area of ΔDFG=175 cm^2.
Step-by-step explanation:
<em>" For two similar triangles the ratio of sides is equal to the ratio of square of their areas".</em>
i.e. if a,b are the corresponding sides of two similar triangles and let A and B denote the area of two triangles then we have the relation as:
(1)
for the first question:
we have a=2, b=5.
A=8 cm^2.
Hence,
B=50 cm^2.
Hence, the area of second triangle is 50 cm^2.
(2)
In second option we have:
a=6 and b=5.
A-B=77 cm^2.
A=77+B
Hence area of second triangle i.e. ΔDFG is 175 cm^2.
and area of first triangle i.e. ΔABC=175-77=98 cm^2.
Answer:
6+12b
Step-by-step explanation:
i took a test with this question and got it right
Answer:
T = 7.5
Step-by-step explanation:
One table = 4 students
? table = 30 students
To get the answer we criss-cross
30 * 1 = 4T(amount of table)
4T = 30
T = 30/4
T = 7.5
There should be 8 tables but the last table has 2 people sitting on it rather than 4.
Answer:
a. The total length of cloth that the dressmaker bought.
b. 2/5 m, 1/3 m, 1/6 m
c. Addition of fractions
Step-by-step explanation:
Step 1. Get the LCD or least common denominator which is in this case 30.
Step 2. Transform each fraction into similar fractions having the same denominator.
12/30, 10/30, 5/30
Step 3. Add now the similar fractions and simplify to lowest terms
27/30 ÷3 = 9/10
I hope it helps :)
