Answer:
I'ma assume B because it's the only graph I see
Answer:
(a) AD=6 cm
(b) 66 cm²
(c) 38 cm
Step-by-step explanation:
(a) To get the length of AD, we can use pythagoras on the triangle part. Let's say the dotted line intersects DC at E. Then since AB and DC are parallel, AD is equal to BE. EC = 8 cm simply by subtracting AB from DC (15-7=8).
Then pythagoras says that 8²+BC²=10². So BC = √(100-64) = 6. And since BC=AD, AD is also 6.
(b) Area of the rectangle DEBA is 7*6 = 42. Area of triangle ECB is base times half height: 8*3 = 24. Sum is 42+24 = 66 cm²
(c) Perimeter is 7+10+15+6 = 38 cm. Add all the side lengths.
Answer:
1
2
3
may be I'm ryt confirm wih some others
Answer:
natural no.s are those no.s which don't have any negative integer or any fractional value
they begin zero and so on
6x + 4y = -24
30x + 20y = -120
You can multiply all of the numbers by any common factor and get an equation that works.